* Re: [v6.6-stable PATCH] mm: gup: stop abusing try_grab_folio
[not found] ` <ZrQYbLGWVf9zOT1p@sashalap>
@ 2024-08-08 18:26 ` Yang Shi
0 siblings, 0 replies; only message in thread
From: Yang Shi @ 2024-08-08 18:26 UTC (permalink / raw)
To: Sasha Levin
Cc: gregkh, yangge1116, hch, david, peterx, akpm, linux-mm, stable,
linux-kernel
On 8/7/24 5:59 PM, Sasha Levin wrote:
> On Tue, Aug 06, 2024 at 12:30:36PM -0700, Yang Shi wrote:
>> commit f442fa6141379a20b48ae3efabee827a3d260787 upstream
>>
>> A kernel warning was reported when pinning folio in CMA memory when
>> launching SEV virtual machine. The splat looks like:
>
> [snip]
>
> This doesn't compile on 6.6...
Oops, CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is not available on
arm64 (my build machine). It is also a problem for 6.9. Will send v2 soon.
>
> mm/huge_memory.c: In function 'follow_devmap_pud':
> mm/huge_memory.c:1213:8: error: implicit declaration of function
> 'try_grab_page'; did you mean 'try_get_page'?
> [-Werror=implicit-function-declaration]
> 1213 | ret = try_grab_page(page, flags);
> | ^~~~~~~~~~~~~
> | try_get_page
>
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